Finding the string length of a integer in .NET

Question

In .NET what is the best way to find the length of an integer in characters if it was represented as a string?

e.g.

1 = 1 character
10 = 2 characters

Answer 1

If you need to deal with negative numbers also, you can take stmax solution with a spin:

public static int IntLength(int i) { 
  if (i == 0) return 1; // no log10(0)
  int n = (i < 0) ? 2 : 1;
  i = (i < 0) ? -i : i;

  return (int)Math.Floor(Math.Log10(i)) + n; 
}